Unlike the british in south africa, the french government justified their own intervention in mid-19th century indochina
a.by claiming it was to protect catholic religious missions.
b.by claiming it was to protect their diamond mines there.
c.in order to reclaim lands lost in world war i.
d.in order to stop the spread of communism.

A. by claiming it was to protect catholic religious missions.

France uses the protection on Paris Foreign Missions Society as a reason for its military intervention in Asia.

Vietnam saw that Catholic missionaries can affect their country, they know that this can promote division among them. 

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Explanation: